Answer:
set array of size 20
set larger_no to 0
set smallest_no to 0
for loop 20 times:
asks for input for each input from user
insert each value in array
run for loop 20 times again:
display each number in array
Inside for loop check IF number > larger_no then
set larger_no=number
Inside for loop check ELSE IF number <smallest_no THEN
smallest_no=number
Write smallest_no
Write larger_no